230
FNCA52 TJSJ 281930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SUN JUN 28 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-290800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 70 20 10
TEMP (24H TREND) 74 (-1) 88 (-2) 74 91
RH % (24H TREND) 93 (+7) 54 (+1) 89 48
WIND 20FT/EARLY(MPH) E 13 E 13 E 14 E 17
WIND 20FT/LATE(MPH) E 10 SE 16 E 11 SE 17
MIXING HGT(FT-AGL/MSL) 4790 5020
TRANSPORT WND (MPH) SE 16 E 22
VENT RATE (KT-FT) 67060 95380
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-290800-
SOUTHERN HILLS-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 70 10 10
TEMP (24H TREND) 70 (-2) 85 (-1) 70 88
RH % (24H TREND) 100 (+7) 67 (+3) 98 61
WIND 20FT/EARLY(MPH) E 11 SE 11 E 10 E 14
WIND 20FT/LATE(MPH) E 10 SE 12 E 11 SE 14
MIXING HGT(FT-AGL/MSL) 5470 5470
TRANSPORT WND (MPH) SE 15 E 21
VENT RATE (KT-FT) 71110 98460
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-290800-
NORTH COASTAL PLAINS-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 80 30 10
TEMP (24H TREND) 73 (-1) 89 (-1) 73 91
RH % (24H TREND) 99 (+5) 65 (+1) 99 60
WIND 20FT/EARLY(MPH) E 19 E 12 E 12 E 13
WIND 20FT/LATE(MPH) E 10 E 16 E 10 E 19
MIXING HGT(FT-AGL/MSL) 5280 6140
TRANSPORT WND (MPH) SE 12 SE 17
VENT RATE (KT-FT) 52800 92100
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-290800-
NORTHERN HILLS-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE NONE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 0 80 20 50
TEMP (24H TREND) 71 (-1) 87 (-2) 71 89
RH % (24H TREND) 100 (+3) 70 (+7) 100 64
WIND 20FT/EARLY(MPH) E 14 E 10 E 11 E 12
WIND 20FT/LATE(MPH) E 8 E 14 E 6 E 17
MIXING HGT(FT-AGL/MSL) 6210 7040
TRANSPORT WND (MPH) SE 10 SE 15
VENT RATE (KT-FT) 55890 91520
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-290800-
WEST COAST-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE NONE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 0 40 10 50
TEMP (24H TREND) 74 (+1) 90 (-1) 73 92
RH % (24H TREND) 100 (+4) 66 (+4) 100 60
WIND 20FT/EARLY(MPH) E 11 SE 14 E 12 E 17
WIND 20FT/LATE(MPH) E 12 E 14 E 12 E 17
MIXING HGT(FT-AGL/MSL) 4770 5130
TRANSPORT WND (MPH) SE 15 E 16
VENT RATE (KT-FT) 62010 71820
DISPERSION 5 5
DSI 4 6 4 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-290800-
EASTERN INTERIOR-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 80 30 10
TEMP (24H TREND) 71 (-3) 87 (-1) 72 89
RH % (24H TREND) 100 (+6) 67 (+3) 99 61
WIND 20FT/EARLY(MPH) E 12 SE 12 E 12 E 13
WIND 20FT/LATE(MPH) E 12 SE 14 E 12 E 14
MIXING HGT(FT-AGL/MSL) 6170 5970
TRANSPORT WND (MPH) SE 15 SE 20
VENT RATE (KT-FT) 80210 101490
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-290800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 70 50 10
TEMP (24H TREND) 69 (-3) 83 (+2) 69 85
RH % (24H TREND) 100 (+3) 74 (-2) 100 68
WIND 20FT/EARLY(MPH) E 10 SE 11 E 11 E 12
WIND 20FT/LATE(MPH) E 9 SE 12 E 10 E 13
MIXING HGT(FT-AGL/MSL) 4180 4970
TRANSPORT WND (MPH) SE 16 SE 22
VENT RATE (KT-FT) 58520 94430
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-290800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE NONE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 0 60 0 50
TEMP (24H TREND) 68 (-2) 86 (+2) 68 87
RH % (24H TREND) 100 (+3) 73 (+7) 99 66
WIND 20FT/EARLY(MPH) E 9 SE 10 E 8 E 12
WIND 20FT/LATE(MPH) E 6 SE 10 E 6 SE 11
MIXING HGT(FT-AGL/MSL) 6370 6900
TRANSPORT WND (MPH) SE 12 SE 13
VENT RATE (KT-FT) 63700 75900
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-290800-
CAYEY MOUNTAIN RANGE-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 70 40 10
TEMP (24H TREND) 70 (-1) 83 (0) 70 84
RH % (24H TREND) 100 (+1) 75 (+5) 100 69
WIND 20FT/EARLY(MPH) E 9 SE 10 E 10 E 12
WIND 20FT/LATE(MPH) E 9 SE 11 E 9 E 13
MIXING HGT(FT-AGL/MSL) 5130 5180
TRANSPORT WND (MPH) SE 16 SE 21
VENT RATE (KT-FT) 71820 93240
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-290800-
VIEQUES-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50 20
TEMP (24H TREND) 76 (-2) 87 (-1) 76 89
RH % (24H TREND) 95 (+9) 65 (0) 91 61
WIND 20FT/EARLY(MPH) E 16 SE 13 E 13 E 14
WIND 20FT/LATE(MPH) E 16 E 14 E 14 E 13
MIXING HGT(FT-AGL/MSL) 3040 3540
TRANSPORT WND (MPH) E 17 SE 20
VENT RATE (KT-FT) 45600 60180
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-290800-
CULEBRA-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50 20
TEMP (24H TREND) 77 (-2) 89 (+1) 77 91
RH % (24H TREND) 97 (+12) 65 (-3) 93 60
WIND 20FT/EARLY(MPH) E 16 SE 14 E 13 E 14
WIND 20FT/LATE(MPH) E 16 E 16 E 14 E 13
MIXING HGT(FT-AGL/MSL) 2890 3320
TRANSPORT WND (MPH) SE 20 E 20
VENT RATE (KT-FT) 49130 56440
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-290800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 30 10 20
TEMP (24H TREND) 74 (-2) 90 (-1) 75 92
RH % (24H TREND) 93 (+6) 53 (+1) 90 48
WIND 20FT/EARLY(MPH) E 14 E 18 E 17 E 23
WIND 20FT/LATE(MPH) E 16 SE 19 E 16 SE 23
MIXING HGT(FT-AGL/MSL) 4570 5060
TRANSPORT WND (MPH) SE 20 E 24
VENT RATE (KT-FT) 77690 106260
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-290800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50 20
TEMP (24H TREND) 76 (-3) 85 (-1) 76 87
RH % (24H TREND) 96 (+10) 70 (-1) 93 65
WIND 20FT/EARLY(MPH) E 16 SE 17 E 13 E 14
WIND 20FT/LATE(MPH) E 18 E 16 E 14 E 13
MIXING HGT(FT-AGL/MSL) 2910 3310
TRANSPORT WND (MPH) SE 22 E 18
VENT RATE (KT-FT) 55290 52960
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-290800-
ST CROIX-
330 PM AST SUN JUN 28 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 40 20
TEMP (24H TREND) 76 (-3) 86 (-1) 77 88
RH % (24H TREND) 98 (+11) 69 (-1) 93 64
WIND 20FT/EARLY(MPH) E 13 E 16 E 13 E 16
WIND 20FT/LATE(MPH) E 13 E 16 E 14 E 16
MIXING HGT(FT-AGL/MSL) 4550 4750
TRANSPORT WND (MPH) E 23 E 25
VENT RATE (KT-FT) 91000 104500
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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